Manufacture of anvils



(No Model.)

W. G. MCCARTHY. MANUFACTURE OF ANVILS.

Patented Oct. 9, 1883 \VILLIAM: C. MCCARTHY, OF PITTSBURG, PENXSYLVANIA.

MANUFACTURE OF ANVILS.

SPECIFICATION forming part of Letters Itatent No. 286,459, dated October 9, 1883.

Application filed October 21, 1882. (No model.)

- others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, which forms a part of this specification, in which is shown a side elevation of the two-part mold I use,

the view being taken with one section of the mold removed and partly in section, and illustrating the position of the mold and the steel face during the pouring operation. My invention relates to the manufacture of anvils; and it has for its object the provision of means whereby a perfect welding of the steel working-face to the body of the anvil is assured.

The customary method of manufacturing cast anvils is as follows: The steel workingface is laid flat on the bottom of the mold, the sinking-head or opening through which the molten metal is poured being at the top of said mold, or that portion where the bottom of the anvil is formed when the casting is complete. An opening is left at that portion of the mold wherein the end of the horn is formed, and through such opening the molten metal is allowed to waste for some time after the operation of pouring has been commenced. The object of allowing themetal to waste out at the point of the horn is to assure a suficient heating of the steel face-plate, as if the metal were to be merely poured down on the plate the latter would be apt to cool the iron in contact with it and refuse to form a perfect weld. This method is objectionable, for the reason that it necessitates the remelting of the metal which is allowed to waste, and which would only be permissible where'a cheap material.such as cast-iron-is used.

My invention consists in setting the mold, which is of the ordinary or any suitable form, but without the customary waste-orifice, in such manner that the steel face-plate will be so inclined and the molten metal will run over such plate on being poured into the mold,

. heating the same and preparing it for a perfect weld, which takes place when the metal again comes into contact with .it as the mold becomes filled up.

Referring to the accompanying drawing, A represents the mold in which the casting is made. This mold is divided longitudinally into two halves, one of which is shown in the drawing, the other being removed. These two sections have a portion of one of their sides cut away, so that when joined together there will be an opening at that portion of the mold where the working-face of the anvil is formed, said opening being closed by a plate, 0, which is cut away on its inner surface, as shown, to receive the steel face-plate B. The lower end or point of the mold consists of a cap, 0, which is bolted to the two sections of the body. The mold is set at an incline, or nearly upright, as shown, with that portion in which the horn is formed at the bottom and the hanging end at the top.

B represents the steel face-plate. The plate Bis heated before being placed in the mold, and when in position is inclined from the perpendicular. The sinking-head is above the upper end of the plate, and the orifice of the sinking-head enlarges gradually until it merges into the mold-cavity. At the pointa the mold is somewhat larger than is necessary to complete a perfectlyformcd anvil. the casting has been completed, this enlargement of the mold leaves a superfluous amount of metal at the hanging end, (or at the horn end when the casting is made from that end,) which is hammered down or compressed after the casting has been completed, rendering such part denser than it would be if the casting were made in completed form.

The mold is set upright for two reasons: first, in order that the molten metal may come in contact with the steel face twice before adhering to the samei. 8., on its downward passage, and on rising up in the mold as the same is filled; second, that the anvil-horn may be compressed by the weight of the long column of metal in the hanging end and sinking-head, or vice versa.

The operation of my invention is as follows: The mold having been prepared, the steel face is heated to a proper degree and placed in When position in the mold. The molten metal is then poured in, passing over the steel plate in its downward passage, and gradually rising upon said plate as the mold is filled. After the mold has been filled, the casting is allowed to cool, andis then removed from the mold, and the enlargement below the sinking-head hammered down or compressed in, so as to give proper form to that part. The gradual taper of the sinkinghead prevents the metal from binding therein, which would result 'in the metal cracking or separating at some point below said sinking-head.

I have found that where the process of casting herein described is carried out by using a chill-mold, (such chill-mold being generally preferable,) the lower end of the mold, or the portion wherein the end of the horn is cast, is gradually burned or roughened by the molten metal, and its usefulness impaired. To obviate this objection I propose to construct the mold with that portion wherein the point of the horn is cast removable, so that it may I be replaced when worn or damaged. In the drawing I have designated such removable portion by the letter 0, and sh own it as secured ening devices, (1.

What I claim as my invention is The method of welding steel faces to iron bodies in casting, consisting in placing the face in the mold and the mold in an inclined position, and pouring the molten metal from above, so as to cause it to flow downwardly over the face, and as it fills the mold to rise over the face again, whereby there is no waste of metal, and the plate is fused sufficiently to weld in cooling, substantially as described.

In testimony that I claim the foregoing as my own I have hereto-affixed my signature in presence of two witnesses.

WM. 0. MCCARTHY.

\Vi tn esscs:

1). E. DAVIS, J os. B. CONNOLLY.

to the remainder of the mold by suitable fast- 

